[OpenSIPS-Users] URI PARSING

Bogdan-Andrei Iancu bogdan at voice-system.ro
Fri Jul 9 20:06:55 CEST 2010


Hi

Premalatha Kuppan wrote:
> Thanks Bogdan.
>
> It was throwing me errors.
> Now i used the following to check de-registration. It works.
>
> if( is_present_hf("Expires") && $(hdr(Expires){s.int <http://s.int>})==0)
>
> BTW, how to differentiate registration and RE-registration request ?

That is a bit hard - by simply looking at the message, you cannot tell - 
you need to check the state within opensips's register table by using 
the registered() function  (see 
http://www.opensips.org/html/docs/modules/1.6.x/registrar.html#id271187) 
- the function will tell if the user is already registered with opensips.

Regards,
Bogdan


>
> On Fri, Jul 9, 2010 at 1:01 PM, Bogdan-Andrei Iancu 
> <bogdan at voice-system.ro <mailto:bogdan at voice-system.ro>> wrote:
>
>     Try:
>
>
>            xlog("---- contact expire=$ct.fields(expires) ;  header
>     expire =
>     $hdr(Expires) \n");
>            if ($ct.fields(expires)) == '0' || $hdr(Expires)=="0")
>                 xlog("L_ERR", "De-registration\n");
>
>     Regards,
>     Bogdan
>
>     Premalatha Kuppan wrote:
>     > I couldn't understand.
>     >
>     > I used $ct.fields(expires).
>     >
>     >         if ($ct.fields(expires)) == '0')
>     >              xlog("L_ERR", "De-registration\n");
>     >
>     >         else
>     >               perform some operation
>     >         exit;
>     >
>     > But its not working though.
>     >
>     > I want to differentiate register and de-register SIP request.
>     Thought
>     > expires field in contact header would hold good. Is there any
>     other way?
>     >
>     > What is the mistake iam doing ?
>     >
>     > On Fri, Jul 9, 2010 at 2:49 AM, Richard Revels
>     <rrevels at bandwidth.com <mailto:rrevels at bandwidth.com>
>     > <mailto:rrevels at bandwidth.com <mailto:rrevels at bandwidth.com>>>
>     wrote:
>     >
>     >     Ha!  Never thought about both being present when I wrote that.
>     >      Thank you.
>     >
>     >
>     >     On Jul 8, 2010, at 4:47 PM, Bogdan-Andrei Iancu wrote:
>     >
>     >     > Hi Richard,
>     >     >
>     >     > actually the logic should be the other way around - the "per
>     >     contact"
>     >     > expire (if present)  has higher priority over the header
>     Expire.
>     >     >
>     >     > Regards,
>     >     > Bogdan
>     >     >
>     >     > Richard Revels wrote:
>     >     >>        #this next part logs an error if the message has
>     no expires
>     >     >> info (scanner messages sent directly to proxy for instance)
>     >     >>        if(is_present_hf("Expires"))
>     >     >>                $avp(i:10) := $hdr(Expires);
>     >     >>        else
>     >     >>                $avp(i:10) := $ct.fields(expires);
>     >     >>        if( $avp(i:10)  == "0" )
>     >     >>        {
>     >     >> ...
>     >     >>
>     >     >>
>     >     >> Speaking of this, using a min_expires param to the
>     registrar module
>     >     >> seems to defeat allowing users to unregister by sending a
>     >     expires of
>     >     >> zero.  I seem to remember it gets bumped to the min
>     value.  If
>     >     true, I
>     >     >> think there should be a check added in the minimum time check
>     >     to let
>     >     >> zero sneak through as is and remove the user from userloc
>     table.
>     >     >>
>     >     >> Richard
>     >     >>
>     >     >>
>     >     >> On Jul 8, 2010, at 5:33 AM, Premalatha Kuppan wrote:
>     >     >>
>     >     >>> Hi,
>     >     >>>
>     >     >>> How do i check expiration for user, meaning to identify
>     >     de-registration.
>     >     >>> When user is de-registred; then the request comes with
>     >     expires=0; how
>     >     >>> to get this field and check in opensips.cfg file ?
>     >     >>>
>     >     >>> Any help ?
>     >     >>>
>     >     >>> Thanks,
>     >     >>> Prem
>     >     >>>
>     >     >>>
>     >     >>> On Wed, Jul 7, 2010 at 7:42 PM, Premalatha Kuppan
>     >     >>> <premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com> <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>>
>     >     <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com> <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>>>>
>     >     wrote:
>     >     >>>
>     >     >>>    Thanks to all.
>     >     >>>
>     >     >>>    Its working now using $tu and avp_db_query.
>     >     >>>
>     >     >>>     $var(x)=$(tu{uri.user});
>     >     >>>                    avp_db_query("INSERT INTO TESTTABLE
>     >     (xxx,yyy,zzz)
>     >     >>>
>     >    
>      VALUES('$(var(x){s.select,0,_})','$(var(x){s.select,1,_})','$(var(x){s.select,2,_})')");
>     >     >>>
>     >     >>>    Now, have to look how to remove these entries during
>     >     de-registration.
>     >     >>>
>     >     >>>    Thanks,
>     >     >>>    Prem
>     >     >>>
>     >     >>>
>     >     >>>
>     >     >>>    On Wed, Jul 7, 2010 at 5:05 PM, Bogdan-Andrei Iancu
>     >     >>>    <bogdan at voice-system.ro
>     <mailto:bogdan at voice-system.ro> <mailto:bogdan at voice-system.ro
>     <mailto:bogdan at voice-system.ro>>
>     >     <mailto:bogdan at voice-system.ro
>     <mailto:bogdan at voice-system.ro> <mailto:bogdan at voice-system.ro
>     <mailto:bogdan at voice-system.ro>>>>
>     >     wrote:
>     >     >>>
>     >     >>>        Premalatha Kuppan wrote:
>     >     >>>> Thanks. Corrected teh opensips.cfg file
>     >     >>>>
>     >     >>>> But the problem was due to this. by default DB URL was
>     >     >>>        NULL. Now i
>     >     >>>> have added the DB URL for avpops.
>     >     >>>> # default URL
>     >     >>>>
>     modparam("avpops","db_url","mysql://user:passwd@host/database")
>     >     >>>>
>     >     >>>>
>     >     >>>>
>     >     >>>> But the value of $rU is NULL..am i placing it in wrong
>     >     >>>        location?
>     >     >>>
>     >     >>>        In REGISTER requests, the RURI has only domain part
>     >     >>>        (sip:opensips.org <http://opensips.org>
>     <http://opensips.org>
>     >     <http://opensips.org/>)
>     >     >>>        so it is normal to have $rU NULL. If you need to
>     >     identity of
>     >     >>>        the user
>     >     >>>        who registered, according to SIP, you have to look at
>     >     the TO
>     >     >>>        URI - so
>     >     >>>        use $tu to get TO uri and use the URI
>     transformation if you
>     >     >>>        want to
>     >     >>>        split in in username and domain (see
>     >     >>>      
>      http://www.opensips.org/Resources/DocsCoreTran16#toc17 ).
>     >     >>>
>     >     >>>
>     >     >>>        Regards,
>     >     >>>        Bogdan
>     >     >>>
>     >     >>>> I want the userpart e.g: sip:userpart at domain is the
>     >     >>>        request uri; i
>     >     >>>> need only userpart . I believe that would be stored in $rU;
>     >     >>>        but tis
>     >     >>>> coming as NULL. Which variable or where should i place this
>     >     >>>        command
>     >     >>>> for registration and de-registration.
>     >     >>>>
>     >     >>>> Any Idea ?
>     >     >>>>
>     >     >>>> On Wed, Jul 7, 2010 at 4:13 PM, mayamatakeshi
>     >     >>>        <mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>
>     >     <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>> <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>
>     >     <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>>>
>     >     >>>> <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com> <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>>
>     >     >>>        <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>
>     >     <mailto:mayamatakeshi at gmail.com
>     <mailto:mayamatakeshi at gmail.com>>>>> wrote:
>     >     >>>>
>     >     >>>>
>     >     >>>>
>     >     >>>>    On Wed, Jul 7, 2010 at 7:32 PM, Premalatha Kuppan
>     >     >>>>    <premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com> <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>>
>     >     >>>        <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>
>     >     <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>>>
>     >     >>>        <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>
>     >     <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>>
>     >     >>>        <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>
>     >     <mailto:premalatha at ngintech.com
>     <mailto:premalatha at ngintech.com>>>>> wrote:
>     >     >>>>
>     >     >>>>        Hi,
>     >     >>>>
>     >     >>>>        Iam using avp_db_query, but opensips is dead with
>     >     >>>        following error,
>     >     >>>>
>     >     >>>>        During Registration, when the user is registered. I
>     >     >>>        have to
>     >     >>>>        parse and store th value in DB. So, included the
>     >     >>>        avp_db_query
>     >     >>>>        in this loop. Is this right one to do. I assume the
>     >     >>>        value of
>     >     >>>>        rU is NULL over here, probably its failing. Not
>     sure :(
>     >     >>>>
>     >     >>>>        Any insight  ?
>     >     >>>>
>     >     >>>>        if (is_method("REGISTER"))
>     >     >>>>                {
>     >     >>>>                        # authenticate the REGISTER requests
>     >     >>>>        (uncomment to enable auth)
>     >     >>>>                        if (!www_authorize("10.140.1.110",
>     >     >>>        "subscriber"))
>     >     >>>>                        {
>     >     >>>>
>     >     >>>        www_challenge("10.140.1.110", "0");
>     >     >>>>                                exit;
>     >     >>>>                        }
>     >     >>>>
>     >     >>>>                     #  if (!db_check_to())
>     >     >>>>                     #  {
>     >     >>>>                     #
>     >     >>>         sl_send_reply("403","Forbidden auth ID");
>     >     >>>>                     #          exit;
>     >     >>>>                     #  }
>     >     >>>>
>     >     >>>>                        if (!save("location"))
>     >     >>>>                                sl_reply_error();
>     >     >>>>
>     >     >>>>                        $var(x) = $rU ;
>     >     >>>>                        avp_db_query("INSERT INTO TESTTABLE
>     >     >>>>        (xxx,yyy,zzz)
>     >     >>>>
>     >     >>>
>     >    
>      VALUES('$(var(x){s.select,0,_})','$var(x)({s.select,1,_})','$(var(x){s.select,2,_})'");
>     >     >>>>                        exit;
>     >     >>>>                }
>     >     >>>>
>     >     >>>>
>     >     >>>>        Jul  7 06:25:16 204548-4
>     >     >>>        /usr/local/sbin/opensips[17791]:
>     >     >>>>        ERROR:avpops:fixup_db_query_avp: no db url defined
>     >     >>>        to be used
>     >     >>>>        by this function
>     >     >>>>        Jul  7 06:25:16 204548-4
>     >     >>>        /usr/local/sbin/opensips[17791]:
>     >     >>>>        *ERROR:core:fix_actions: fixing failed (code=-6) at
>     >     >>>        cfg line 351*
>     >     >>>>        Jul  7 06:25:16 204548-4
>     >     >>>        /usr/local/sbin/opensips[17791]:
>     >     >>>>        ERROR:core:main: failed to fix configuration with
>     >     >>>        err code -6
>     >     >>>>
>     >     >>>>
>     >     >>>>    Clearly you misplaced the parenthesis:
>     >     >>>>
>     >     >>>>
>     >     >>>>    $(var(x){s.select,0,_})',
>     >     >>>>    '$var(x)({s.select,1,_})',
>     >     >>>>    '$(var(x){s.select,2,_})'
>     >     >>>>
>     >     >>>>
>     >     >>>>
>     >     >>>>
>     >     >>>>    _______________________________________________
>     >     >>>>    Users mailing list
>     >     >>>>    Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>
>     >     >>>        <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>>
>     >     >>>        <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>
>     >     >>>        <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>>>
>     >     >>>>    http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >     >>>>
>     >     >>>>
>     >     >>>>
>     >     >>>
>     >    
>      ------------------------------------------------------------------------
>     >     >>>>
>     >     >>>> _______________________________________________
>     >     >>>> Users mailing list
>     >     >>>> Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>>
>     >     >>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >     >>>>
>     >     >>>
>     >     >>>
>     >     >>>        --
>     >     >>>        Bogdan-Andrei Iancu
>     >     >>>        OpenSIPS Bootcamp
>     >     >>>        20 - 24 September 2010, Frankfurt, Germany
>     >     >>>        www.voice-system.ro <http://www.voice-system.ro>
>     <http://www.voice-system.ro>
>     >     <http://www.voice-system.ro/>
>     >     >>>
>     >     >>>
>     >     >>>        _______________________________________________
>     >     >>>        Users mailing list
>     >     >>>        Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>
>     <mailto:Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>>
>     >     >>>      
>      http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >     >>>
>     >     >>>
>     >     >>>
>     >     >>> _______________________________________________
>     >     >>> Users mailing list
>     >     >>> Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>
>     >     <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>>
>     >     >>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >     >>
>     >     >>
>     >    
>     ------------------------------------------------------------------------
>     >     >>
>     >     >> _______________________________________________
>     >     >> Users mailing list
>     >     >> Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>     <mailto:Users at lists.opensips.org>>
>     >     >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >     >>
>     >     >
>     >     >
>     >     > --
>     >     > Bogdan-Andrei Iancu
>     >     > OpenSIPS Bootcamp
>     >     > 20 - 24 September 2010, Frankfurt, Germany
>     >     > www.voice-system.ro <http://www.voice-system.ro>
>     <http://www.voice-system.ro>
>     >     >
>     >     >
>     >     > _______________________________________________
>     >     > Users mailing list
>     >     > Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     <mailto:Users at lists.opensips.org <mailto:Users at lists.opensips.org>>
>     >     > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >
>     >
>     >     _______________________________________________
>     >     Users mailing list
>     >     Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     <mailto:Users at lists.opensips.org <mailto:Users at lists.opensips.org>>
>     >     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >
>     >
>     >
>     ------------------------------------------------------------------------
>     >
>     > _______________________________________________
>     > Users mailing list
>     > Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >
>
>
>     --
>     Bogdan-Andrei Iancu
>     OpenSIPS Bootcamp
>     20 - 24 September 2010, Frankfurt, Germany
>     www.voice-system.ro <http://www.voice-system.ro>
>
>
>     _______________________________________________
>     Users mailing list
>     Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>   


-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
20 - 24 September 2010, Frankfurt, Germany
www.voice-system.ro




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